Aberdeen drivers may notice more commercial vehicles and experience some traffic delays on local roads during the next few months. The Washington State Department of Transportation (WSDOT) and contractor Kiewit-General (K-G) are going full speed ahead to complete new pontoons for the aging SR 520 Bridge. But as work ramps up, traffic may slow down a bit. Motorists should plan for higher than normal traffic volumes and possible slight delays on US 101, W. Wishkah Street, E. Terminal Road and W. Heron Street from 7 a.m. to 3 a.m. weekdays. An average of 150 trips will be made daily to and from the SR 520 Pontoon Construction Site near the Port of Grays Harbor. Project-related traffic is expected to decline in early June when most of the materials and equipment needed to build a pontoon casting facility will be on site.